The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2013
Filed:
Apr. 07, 2004
Ryuichi Okamoto, Kadoma, JP;
Susumu Kobayashi, Kyotanabe, JP;
Katsumi Tokuda, Ikeda, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A user terminal () having a license purchase unit () obtaining a license () indicating a content usable time () of a content data () composed of a plurality of elements (), each of which can be replayed individually. The user terminal () also having an availability judgment unit () judging whether or not encrypted elements () included in the content data () are available, based on the content usable time () indicated in the obtained license (), and having a replay/display unit () replaying the encrypted elements judged as available. In addition, the user terminal () having a use status management unit () specifying license-consuming elements, each of which consumes an authorized amount of replay under right, out of the elements that are being replayed, and measuring a content used time () consumed by replaying the specified license-consuming elements.